38448020

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{181}}^1$

素因数の和:265

約数の個数: 96

約数和(自身を含む): 94174080

約数和(自身を除く): 55726060

約数列:

[1, 2, 4, 5, 10, 13, 19, 20, 26, 38, 43, 52, 65, 76, 86, 95, 130, 172, 181, 190, 215, 247, 260, 362, 380, 430, 494, 559, 724, 817, 860, 905, 988, 1118, 1235, 1634, 1810, 2236, 2353, 2470, 2795, 3268, 3439, 3620, 4085, 4706, 4940, 5590, 6878, 7783, 8170, 9412, 10621, 11180, 11765, 13756, 15566, 16340, 17195, 21242, 23530, 31132, 34390, 38915, 42484, 44707, 47060, 53105, 68780, 77830, 89414, 101179, 106210, 147877, 155660, 178828, 202358, 212420, 223535, 295754, 404716, 447070, 505895, 591508, 739385, 894140, 1011790, 1478770, 1922401, 2023580, 2957540, 3844802, 7689604, 9612005, 19224010, 38448020]

約数ペア:

[(1, 38448020), (2, 19224010), (4, 9612005), (5, 7689604), (10, 3844802), (13, 2957540), (19, 2023580), (20, 1922401), (26, 1478770), (38, 1011790), (43, 894140), (52, 739385), (65, 591508), (76, 505895), (86, 447070), (95, 404716), (130, 295754), (172, 223535), (181, 212420), (190, 202358), (215, 178828), (247, 155660), (260, 147877), (362, 106210), (380, 101179), (430, 89414), (494, 77830), (559, 68780), (724, 53105), (817, 47060), (860, 44707), (905, 42484), (988, 38915), (1118, 34390), (1235, 31132), (1634, 23530), (1810, 21242), (2236, 17195), (2353, 16340), (2470, 15566), (2795, 13756), (3268, 11765), (3439, 11180), (3620, 10621), (4085, 9412), (4706, 8170), (4940, 7783), (5590, 6878)]